JPH0852747A - Integrally molded article of polyurethane foam, manufacture thereof, method for boring skin material, and cutting die using the same - Google Patents
Integrally molded article of polyurethane foam, manufacture thereof, method for boring skin material, and cutting die using the sameInfo
- Publication number
- JPH0852747A JPH0852747A JP7087398A JP8739895A JPH0852747A JP H0852747 A JPH0852747 A JP H0852747A JP 7087398 A JP7087398 A JP 7087398A JP 8739895 A JP8739895 A JP 8739895A JP H0852747 A JPH0852747 A JP H0852747A
- Authority
- JP
- Japan
- Prior art keywords
- skin material
- diameter
- polyurethane foam
- cloth
- synthetic resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Polyurethanes Or Polyureas (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、表皮材とポリウレタン
フォーム原料（以下、フォーム原料という。）とを一体
に成形して得られるポリウレタンフォーム一体成形品
（以下、ウレタン一体成形品という。）及びその製造方
法に関する。また、本発明は、上記表皮材に貫通孔を開
ける方法、そのために使用する抜き型に関する。本発明
のウレタン一体成形品は、自動車のヘッドレスト、アー
ムレスト及びセンターアームレスト、その他のクッショ
ン材などとして利用される。BACKGROUND OF THE INVENTION The present invention relates to a polyurethane foam integrally molded product (hereinafter referred to as urethane integrally molded product) obtained by integrally molding a surface material and a polyurethane foam raw material (hereinafter referred to as foam raw material), and The manufacturing method is related. The present invention also relates to a method for forming a through hole in the above skin material, and a die used for that purpose. The urethane integrally molded product of the present invention is used as a headrest, an armrest and a center armrest of automobiles, and other cushioning materials.
【０００２】[0002]
【従来の技術】自動車のヘッドレストなどは、布等から
なる表皮材とフォーム原料とを一体に成形することによ
り製造されている。しかし、従来、特に含浸性の高い布
等を使用した表皮材では、バッキング材により裏打ちさ
れた布等に、実質的に通気性を有さない合成樹脂フィル
ム（以下、フィルムということもある。）が接合された
２層品、或いはバッキング材とフィルムとの間に更にポ
リウレタンスラブフォーム層等が設けられた３層品が使
用されており、そのため以下の各問題を生じている。2. Description of the Related Art An automobile headrest or the like is manufactured by integrally molding a skin material such as cloth and a foam raw material. However, conventionally, in a skin material using a cloth having a particularly high impregnating property, a synthetic resin film (hereinafter also referred to as a film) having substantially no air permeability on a cloth lined with a backing material. A two-layer product in which a polyurethane slab foam layer or the like is further provided between a backing material and a film is used, which causes the following problems.
【０００３】上記フィルムとしてはポリウレタンフィ
ルム、ポリ塩化ビニルフィルム等が多用されるが、それ
らフィルムの表面は滑り難く、縫製時ミシンの滑りが悪
く縫い難い。また、縫い易くするため通常フィルム表面
にシリコーンオイル等が塗布されるが、シリコーンオイ
ルは離型性が高いため表皮材とポリウレタンフォーム
（以下、フォームということもある。）とが剥離し易
い。 フォーム原料の発泡硬化過程でガスが発生した場合、
ガスの逃げ場がなく、そのままフィルムとフォームとの
間に気泡として残る。Polyurethane films, polyvinyl chloride films and the like are often used as the above-mentioned films, but the surfaces of these films are difficult to slip and the sewing machine has a poor slippage during sewing and is difficult to sew. Further, silicone oil or the like is usually applied to the surface of the film for easy sewing, but since the silicone oil has high releasability, the skin material and the polyurethane foam (hereinafter sometimes referred to as foam) are easily peeled off. If gas is generated during the foam hardening process of the foam material,
There is no escape area for gas, and it remains as bubbles between the film and foam.
【０００４】フィルムに通気性がないため、フォーム
原料の発泡圧は表皮カバーの縫い目に集中し、フォーム
原料が縫い目より漏出する。そのため、脱型後漏出した
フォームを除去する作業を要する。 成形品の表面付近の通気性がなく、使用時「ムレ」等
不快感がある。 フォーム表面に比較的剛性の高いフィルムが接合され
ることになるため、特にポリウレタンスラブフォーム層
がない場合には、成形品表面の柔軟性が損なわれ、リジ
ッドな感触になる。 表皮材と接するフォームの表面近傍の通気性と柔軟性
を高めるため、脱型後ロールクラッシング又は穴開けク
ラッシング等の後処理が必要となり、一工程増えるため
より多くの設備費及び工数を要する。Since the film is not breathable, the foaming pressure of the foam raw material is concentrated on the seam of the skin cover, and the foam raw material leaks from the seam. Therefore, it is necessary to remove the leaked foam after demolding. There is no air permeability near the surface of the molded product, and there is discomfort during use, such as "stuffiness". Since a film having a relatively high rigidity is bonded to the foam surface, the flexibility of the surface of the molded product is impaired and a rigid feel is obtained especially when the polyurethane slab foam layer is not present. In order to improve the air permeability and flexibility near the surface of the foam that contacts the skin material, post-treatment such as roll crushing or hole crushing is required after demolding, and more equipment cost and man-hours are required because one step is added. .
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上記問題点
を解決するものであり、フォーム原料の発泡硬化時に発
生するガスが容易に外部へ逸散するため、気泡のない成
形品を得ることができ、またフォーム原料の漏出もな
く、しかも表面部が適度な通気性を有するとともに柔軟
な感触であり、且つ使用時にムレ等のない使用感に優れ
たウレタン一体成形品及びその製造方法を提供すること
を目的とする。また、本発明は、このウレタン一体成形
品の構成部材である表皮材に貫通孔を設けるための特定
の方法、及びそれに用いる特定の抜き型を提供すること
を目的とし、それによってより優れた性能のウレタン一
体成形品を得ることができる。SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems, and a gas generated during foaming and hardening of a foam raw material easily escapes to the outside to obtain a molded product having no bubbles. Provided is a urethane-integrated molded article which is excellent in a feeling of use without causing leakage of foam raw material, having a proper air permeability at the surface portion, a soft feeling, and a feeling of stuffiness during use, and a manufacturing method thereof. The purpose is to do. Further, the present invention aims to provide a specific method for providing a through-hole in a skin material that is a constituent member of this urethane integrally molded product, and a specific cutting die used for the method, thereby providing more excellent performance. It is possible to obtain the urethane integrally molded product.
【０００６】[0006]
【課題を解決するための手段】本発明者らは、ウレタン
一体成形品に使用される表皮材について鋭意検討した結
果、少なくとも布と合成樹脂フィルムが積層されてお
り、その所要箇所に適宜直径の貫通孔（以下、孔という
こともある。）を適宜個数設けることにより、従来使用
されているフィルムが接合された表皮材の欠点が解消さ
れることを見出した。また、特定の構成を有する抜き型
を、表皮材の布面側から押し当てて、所望形状の表皮材
を打ち抜くとともに孔を開けることにより、フィルムは
内側へ返りを生じ、これによって発泡圧によるフォーム
原料の漏れがより効果的に防止されることも見出し、本
発明を完成するに至った。Means for Solving the Problems As a result of earnest studies on the skin material used for the urethane integrally molded product, the present inventors have found that at least a cloth and a synthetic resin film are laminated, and that a required diameter of the skin material is appropriately adjusted. It has been found that by providing an appropriate number of through holes (hereinafter, also referred to as holes), the drawbacks of the skin material to which the conventionally used film is bonded can be eliminated. In addition, by pressing a die having a specific structure from the cloth surface side of the skin material, punching out the skin material of a desired shape and making holes, the film is turned back to the inside, which causes foaming due to foaming pressure. The inventors have also found that leakage of raw materials can be more effectively prevented, and have completed the present invention.
【０００７】第１発明のウレタン一体成形品は、表皮材
とポリウレタンフォームからなるポリウレタンフォーム
一体成形品であって、上記表皮材は、少なくとも布と合
成樹脂フィルムが積層されたものであり、その所要箇所
に、直径０．０１〜０．３ｍｍの貫通孔が１〜１００個
／ｃｍ2 開けられていることを特徴とし、第２発明は、
上記合成樹脂がポリウレタン又はポリ塩化ビニルであ
り、上記フィルムの厚さが３０〜１００μｍであって、
上記貫通孔の直径が０．０５〜０．２ｍｍ、その個数が
１〜１０個／ｃｍ2 であることを特徴とする。The urethane integrally molded product of the first invention is a polyurethane foam integrally molded product composed of a skin material and a polyurethane foam, wherein the skin material is a laminate of at least a cloth and a synthetic resin film. The second invention is characterized in that through holes having a diameter of 0.01 to 0.3 mm are opened at 1 to 100 holes / cm 2 at a location.
The synthetic resin is polyurethane or polyvinyl chloride, and the thickness of the film is 30 to 100 μm,
The diameter of the through holes is 0.05 to 0.2 mm, and the number thereof is 1 to 10 / cm 2 .
【０００８】上記「表皮材」は、少なくとも、バッキン
グ材によって裏打ちされた「布」と、その一面に接合さ
れた「合成樹脂フィルム」からなる。布としては、織
物、ニット、モケット、ダブルラッセル等を使用でき
る。また、バッキング材としては、アクリル酸ポリエス
テルやアクリル酸ポリエステルとブタジエンゴムとの混
合物などが用いられる。合成樹脂フィルムの原料として
は、ポリウレタン、ポリ塩化ビニル、ポリエチレン、エ
チレン−酢酸ビニル共重合体等が挙げられる。合成樹脂
の種類、フィルムに開けられる貫通孔（この孔は表皮材
の全厚さを通して開けられるものであるが、布等は元々
十分な通気性を有しており、孔の直径、個数等の実質的
な意味はフィルムに開けられた孔にある。）の直径（以
下、孔径という。）及び１ｃｍ2 当たりの個数並びにフ
ィルムの厚さなどは互いに相関があり、それらを適宜に
選択して最適な表皮材とすることができる。The "skin material" comprises at least a "cloth" lined with a backing material and a "synthetic resin film" bonded to one surface thereof. As the cloth, woven fabric, knit, moquette, double russell and the like can be used. As the backing material, acrylate polyester or a mixture of acrylate polyester and butadiene rubber is used. Examples of the raw material of the synthetic resin film include polyurethane, polyvinyl chloride, polyethylene, ethylene-vinyl acetate copolymer and the like. Type of synthetic resin, through holes formed in the film (This hole is made through the entire thickness of the skin material, but cloth etc. has inherently sufficient air permeability, and the diameter, number of holes, etc. The substantial meaning is in the holes formed in the film.) (Hereinafter referred to as the hole diameter), the number per 1 cm 2 , the film thickness, etc. are correlated with each other. Can be used as a skin material.
【０００９】孔径は０．０１〜０．３ｍｍ、孔の個数は
１〜１００個／ｃｍ2 の範囲であり、特に第２発明のよ
うに、合成樹脂がポリウレタン又はポリ塩化ビニルであ
り、フィルムの厚さが３０〜１００μｍであって、孔径
が０．０５〜０．２ｍｍ、孔の個数が１〜１０個／ｃｍ
2 である場合には、発泡硬化時のガスの抜けがよく、且
つフォーム原料は漏出せず、また、ウレタン一体成形品
の表面の通気性が良好であるとともに、ソフトな感触と
なり使用感に優れたヘッドレスト等が得られる。The hole diameter is 0.01 to 0.3 mm, the number of holes is in the range of 1 to 100 holes / cm 2 , and the synthetic resin is polyurethane or polyvinyl chloride, as in the second invention. The thickness is 30 to 100 μm, the hole diameter is 0.05 to 0.2 mm, and the number of holes is 1 to 10 / cm.
When it is 2 , the gas escapes well at the time of foam curing, the foam raw material does not leak out, and the urethane integral molded product has good air permeability on the surface, and has a soft feel and an excellent feeling in use. Headrest etc. can be obtained.
【００１０】孔がない場合或いはあるとしても孔径が
０．０１ｍｍ未満の場合は、ガス抜けが困難となり、表
皮材とフォームとの間に気泡が生じる。また、発泡圧が
表皮カバーの縫い目に集中して、そこからフォーム原料
が漏出することがある。一方、孔径が０．３ｍｍ超及び
／又は孔の個数が１００個／ｃｍ2 超の場合は、ガスは
抜け易くなるものの、表皮材の縫い目ばかりでなく、表
皮層そのものからもフォーム原料が漏出することもあり
得る。If there is no hole or if there is any hole with a diameter of less than 0.01 mm, it is difficult to escape gas and bubbles are generated between the skin material and the foam. Further, the foaming pressure may be concentrated on the seam of the skin cover, and the foam raw material may leak from there. On the other hand, when the pore size is more than 0.3 mm and / or the number of holes is more than 100 / cm 2 , although the gas is easily released, the foam raw material leaks not only from the seam of the skin material but also from the skin layer itself. It is possible.
【００１１】また、第３発明のウレタン一体成形品の製
造方法は、表面に直径０．１〜１．０ｍｍの針が１〜１
００本／ｃｍ2 固定された抜き型によって、少なくとも
布と合成樹脂フィルムが積層されてなる表皮材から所望
形状の表皮材を打ち抜くと同時に、該所望形状の表皮材
の所要箇所に、直径０．０１〜０．３ｍｍの貫通孔を１
ｃｍ2 当たり１〜１００個開け、その後、上記所望形状
の表皮材を所定形状に縫製して、上記布を外面とした表
皮カバーを形成し、次いで、上記表皮カバーを成形型内
に収容し、その後、上記表皮カバー内にフォーム原料を
注入し、発泡硬化後、脱型することを特徴とし、第４発
明は、上記合成樹脂がポリウレタン又はポリ塩化ビニル
であり、上記フィルムの厚さが３０〜１００μｍであっ
て、上記孔径が０．０５〜０．２ｍｍ、その個数が１〜
１０個／ｃｍ2 であり、且つ上記フォーム原料の発泡圧
が、０．５〜２．０ｋｇ／ｃｍ2 であることを特徴とす
る。In the method for producing a urethane integrally molded product according to the third aspect of the invention, needles having a diameter of 0.1 to 1.0 mm are provided on the surface of 1-1.
00 pieces / cm 2 A die having a fixed shape is used to punch a skin material having a desired shape from a skin material having at least a cloth and a synthetic resin film laminated, and at the same time, a desired diameter of the skin material having a diameter of 0. 1 through hole of 01-0.3mm
Open 1 to 100 pieces per cm 2 , then sew the desired shape of the skin material to a predetermined shape to form a skin cover with the cloth as the outer surface, and then store the skin cover in a molding die, After that, a foam material is injected into the skin cover, and after foaming and curing, the mold is released. In the fourth invention, the synthetic resin is polyurethane or polyvinyl chloride, and the thickness of the film is 30 to 30. 100 μm, the pore size is 0.05 to 0.2 mm, and the number is 1 to
It is characterized in that it is 10 cells / cm 2 and the foaming pressure of the foam raw material is 0.5 to 2.0 kg / cm 2 .
【００１２】上記「針」の直径は、表皮材、特に合成樹
脂フィルムに開ける貫通孔の所望径と使用する合成樹脂
の種類及びそれからなるフィルムの厚さ等によって適宜
選択する。前記のポリウレタン、ポリ塩化ビニル等の合
成樹脂からなるフィルムはある程度のゴム弾性を有して
おり、開けられる孔径は針の直径に対して特定の割合で
小さい値となる。例えば、厚さ３０μｍのポリウレタン
フィルムの場合、針径が０．１ｍｍでは孔径は略０．０
１ｍｍ、０．８ｍｍでは略０．１ｍｍ、１．０ｍｍでは
略０．３ｍｍ等である。The diameter of the "needle" is appropriately selected depending on the desired diameter of the through-hole formed in the skin material, particularly the synthetic resin film, the type of the synthetic resin used, the thickness of the film made of the synthetic resin, and the like. The film made of synthetic resin such as polyurethane or polyvinyl chloride has rubber elasticity to some extent, and the diameter of the hole to be opened becomes a small value with respect to the diameter of the needle at a specific ratio. For example, in the case of a polyurethane film having a thickness of 30 μm, the hole diameter is about 0.0 when the needle diameter is 0.1 mm.
It is about 0.1 mm for 1 mm and 0.8 mm, and about 0.3 mm for 1.0 mm.
【００１３】また、上記のウレタン一体成形品の製造方
法において、表皮材の打ち抜き及び貫通孔の形成は、表
皮材の布面、合成樹脂フィルム面どちらに抜き型を当て
て実施してもよいが、第５発明のように、抜き型を布面
側から押し当てる方法であれば、図１に示すように貫通
孔１３の周囲の合成樹脂フィルム１２の返り１２１がフ
ィルム側に形成され、また、布１１を構成する繊維１１
１の一部もフィルムの返りの方向に押し出されることに
なる。そのため、この表皮材１を使用して所望形状の表
皮カバーを縫製した場合に、上記返りは表皮カバーの内
側に向かって開くことになり、硬化過程における発泡圧
によって上記返りが孔を塞ぐ働きをするとともに、上記
繊維も漏れに対する抵抗となり、フォーム原料の漏出を
より効果的に防止できる。Further, in the above-mentioned method for manufacturing the integrally molded urethane product, the skin material may be punched out and the through holes may be formed by applying a die to either the cloth surface of the skin material or the synthetic resin film surface. In the method of pressing the die from the cloth surface side as in the fifth aspect of the invention, a return 121 of the synthetic resin film 12 around the through hole 13 is formed on the film side as shown in FIG. Fibers 11 that make up the cloth 11
Part 1 will also be extruded in the direction of film return. Therefore, when a skin cover having a desired shape is sewn using the skin material 1, the barb opens toward the inside of the skin cover, and the barb functions to close the holes by the foaming pressure in the curing process. At the same time, the fibers also become resistant to leakage, and the leakage of the foam raw material can be prevented more effectively.
【００１４】更に、第７発明の抜き型２は、例えばヘッ
ドレスト等製品に応じた形状に表皮材を打ち抜くため、
図２（ａ）に示すように、基部２１の一面に、通常この
基部の周縁近傍に沿って打ち抜き刃２２が立設されてい
るが、その刃が設けられているのと同じ面に、例えば第
１０発明に特定されたような直径及び本数の針２３が立
設、固定されている。また、この抜き型には、上記針に
差し込まれた状態で弾性パッド２４が装着されている。Further, since the punching die 2 of the seventh invention punches the skin material into a shape according to the product such as a headrest,
As shown in FIG. 2A, a punching blade 22 is usually provided upright on one surface of the base portion 21 along the vicinity of the peripheral edge of the base portion. The needles 23 having the diameter and the number as specified in the tenth invention are erected and fixed. Further, an elastic pad 24 is attached to the punching die while being inserted into the needle.
【００１５】上記弾性パッドの材質は特に限定はされ
ず、打ち抜き、孔開けの際には、図２（ｂ）に示すよう
に、押圧によって十分に薄く変形して、表皮材を確実に
打ち抜くことができ、且つ完全な貫通孔が形成され、表
皮材から抜き型を取り去った際には、速やかに元の厚さ
に復して、図２（ａ）の状態に戻ることができる程度の
柔軟性及び弾力性を併せ有するものであればよい。その
ようなパッドは各種樹脂の発泡体によって形成し得る
が、第８発明のように、適度な圧縮率及び弾性並びに繰
り返し荷重による変形が小さい等の優れた特性を有す
る、硬さが１０〜２０ｋｇｆのポリウレタンフォームの
使用が好ましい。この硬さが１０ｋｇｆ未満では、変形
は容易であるが、抜き型を取り去る際に、速やかに原形
に復して表皮材を貫入している針から押し出すことがで
きず、２０ｋｇｆを越える場合は、圧縮変形し難くなっ
て、抜き型を表皮材に十分押圧することができず、確実
な打ち抜き及び孔開けが難しくなることがある。The material of the elastic pad is not particularly limited, and at the time of punching and punching, as shown in FIG. 2 (b), it is deformed sufficiently thin by pressing to surely punch the skin material. And a complete through-hole is formed, and when the die is removed from the skin material, it is flexible enough to quickly return to the original thickness and return to the state of FIG. 2 (a). Any material having both elasticity and elasticity may be used. Such a pad can be formed of a foamed body of various resins, but as in the eighth aspect of the invention, it has excellent characteristics such as moderate compressibility and elasticity, and small deformation due to repeated load, and has a hardness of 10 to 20 kgf. The use of polyurethane foam is preferred. When the hardness is less than 10 kgf, the deformation is easy, but when the die is removed, it cannot be quickly restored to the original shape and the skin material cannot be extruded from the penetrating needle. It may become difficult to be deformed by compression, the die cannot be sufficiently pressed against the skin material, and reliable punching and punching may become difficult.
【００１６】また、このパッドの厚さは針の長さとほぼ
同程度、言い換えれば、針の先端がほぼ弾性パッドの表
面に達する程度であることが好ましく、更に、第９発明
のように、打ち抜き刃もパッド表面に達する程度の寸法
である抜き型とすれば、表皮材を打ち抜いた後、抜き型
を取り去る際に、原形に復するパッドの押圧力によっ
て、表皮材が針から速やかに且つ確実に押し出され、針
のみが表皮材に刺さったままの状態となって、孔径が大
きくなったり、孔の形状が不揃いになるといった問題を
生ずることがない。The thickness of the pad is preferably about the same as the length of the needle, in other words, the tip of the needle almost reaches the surface of the elastic pad. Further, as in the ninth invention, punching is performed. If the cutting die is such that the blade also reaches the surface of the pad, when the skin material is punched out and then the cutting die is removed, the pressing force of the pad that restores the original shape allows the skin material to be quickly and reliably removed from the needle. There is no problem that the needle is pierced into the skin and only the needle is stuck in the skin material, and the hole diameter becomes large or the shape of the hole becomes irregular.
【００１７】上記「フォーム原料」としては、ポリウレ
タン軟質モールドフォームの製造に通常使用されるもの
を特に限定することなく使用できる。ポリオール成分と
しては、１級水酸基を含む分子量４０００〜６０００程
度のポリエーテル、ポリマーポリオールブレンド品を使
用でき、これにアミン系と錫系の混合触媒、低活性シリ
コーン系整泡剤及び水等を添加したものなどを用いるこ
とができ、イソシアネート成分としては、ＴＤＩ、ＴＤ
Ｉ／ＭＤＩ、ＭＤＩ等各種のものを使用できる。As the above-mentioned "foam raw material", those usually used for producing a polyurethane flexible mold foam can be used without particular limitation. As the polyol component, a polyether having a molecular weight of about 4000 to 6000 containing a primary hydroxyl group, a polymer polyol blend product can be used, to which an amine- and tin-based mixed catalyst, a low-activity silicone-based foam stabilizer and water are added. As the isocyanate component, TDI and TD can be used.
Various types such as I / MDI and MDI can be used.
【００１８】フォーム原料の「発泡圧」は特に限定はさ
れないが、上記特定の構成の表皮材を使用した一体成形
の場合、特に第４発明のように「０．５〜２．０ｋｇ／
ｃｍ2 」の範囲のフォーム原料を使用することが好まし
い。発泡圧が上記範囲内のものであれば、合成樹脂フィ
ルムの孔径及び孔の個数が下限に近い値であっても、ガ
スの抜けがよく、気泡や欠肉等を生じることがない。ま
た、上記孔径及び個数が上限に近い値であっても、表皮
材の縫い目等からガスとともにフォーム原料が漏出する
ようなこともない。更に、第５発明のように、表皮材の
布面側から貫通孔を設けた場合は、上記発泡圧が上記上
限値をある程度上回っても、フォーム原料の漏出はより
確実に防止される。The "foaming pressure" of the foam raw material is not particularly limited, but in the case of integral molding using the skin material having the above-mentioned specific constitution, in particular as in the fourth invention, "0.5-2.0 kg /
It is preferred to use foam raw materials in the cm 2 range. When the foaming pressure is within the above range, even if the pore diameter and the number of pores of the synthetic resin film are values close to the lower limit, the gas escapes well, and bubbles and deficiency do not occur. Even if the pore size and the number are close to the upper limits, the foam raw material will not leak out together with the gas from the seam of the skin material. Further, in the case where the through hole is provided from the cloth surface side of the skin material as in the fifth invention, leakage of the foam raw material is more reliably prevented even if the foaming pressure exceeds the upper limit value to some extent.
【００１９】[0019]
【作用】自動車のヘッドレスト、アームレスト等は、従
来より表皮材からなるカバー中にフォーム原料を注入し
て一体に成形する方法で製造されており、表皮材とし
て、特に含浸性の高い布を使用する場合は、これに更に
必須の部材として合成樹脂フィルムを積層したものが使
用されている。それらフィルムは通常殆ど通気性を有さ
ないため、フォーム原料から発生するガスは表皮材を透
過することができず、発泡圧は表皮カバーの縫い目に集
中することになる。しかし、本発明に使用される表皮材
では、必須の部材として使用されているフィルムも含
め、適宜の直径の貫通孔が適宜の個数開けられており、
表皮材全体が適当な通気性を有するため、特定箇所への
圧力の集中は生じない。そのため、ガス抜けが良好、気
泡を生じない等の効果が奏されるものである。[Function] Conventionally, automobile headrests, armrests, etc. are manufactured by a method in which a foam raw material is poured into a cover made of a skin material and integrally molded, and a cloth having a particularly high impregnating property is used as the skin material. In this case, a laminate of synthetic resin films is further used as an essential member. Since the films usually have little breathability, the gas generated from the foam raw material cannot pass through the skin material, and the foaming pressure is concentrated on the seam of the skin cover. However, in the skin material used in the present invention, including the film used as an indispensable member, an appropriate number of through holes having an appropriate diameter are opened,
Since the entire skin material has appropriate air permeability, no pressure is concentrated on a specific place. As a result, the gas outflow is good and bubbles are not generated.
【００２０】また、本発明のようなウレタン一体成形品
に使用されるポリウレタン軟質モールドフォームは通常
独立気泡の割合が高く、その表面近傍に適度の通気性を
持たせ、且つ柔軟にするためには、脱型後ロールクラッ
シング等によって破泡させ連通気泡とする処理が必要で
ある。しかし、本発明では、合成樹脂フィルムに適宜な
貫通孔が設けられているため、上記のような後処理をし
なくても、成形品の表面近傍は通気性を有するととも
に、柔軟な感触となる。このような特定の表皮材を使用
することにより、本発明では、フォームの発泡硬化工程
等成形操作が容易で、しかも特別な後処理を要すること
もなく、ソフトな感触でムレ等のない所望形状のウレタ
ン一体成形品が得られる。In addition, the polyurethane flexible mold foam used for the urethane integrally molded product according to the present invention usually has a high proportion of closed cells, and in order to have appropriate air permeability in the vicinity of its surface and to be flexible. After demolding, it is necessary to perform a process of breaking the bubbles by roll crushing or the like to form open cells. However, in the present invention, since the synthetic resin film is provided with appropriate through-holes, the vicinity of the surface of the molded article has air permeability and a soft feel even without the above-mentioned post-treatment. . By using such a specific skin material, in the present invention, the foaming and curing step of the foam can be easily performed, and no special post-treatment is required, and the desired shape with a soft feel and no stuffiness is obtained. The urethane-integrated molded product can be obtained.
【００２１】更に、本発明では、フィルムに設けられた
貫通孔の返りが、フォーム原料の発泡硬化時、発泡圧に
よって貫通孔を塞ぐ方向に変形し、ガスは何ら影響を受
けずに透過し得るものの、ある程度粘度の高いフォーム
原料の漏出を防ぐ作用をする。また、フィルムの返りと
ともに布を構成する繊維も少なからず孔が開けられる方
向へ入り込み、フォーム原料の漏れを抑える働きをす
る。そのため、発泡圧をそれほど厳密にコントロールす
る必要もなく、圧が高めになったとしても問題となるほ
どの量のフォーム原料の漏出を生ずることはない。Further, in the present invention, the return of the through hole provided in the film is deformed in the direction of closing the through hole by the foaming pressure when the foam raw material is foamed and hardened, and the gas can permeate without any influence. However, it has a function of preventing leakage of foam material having a certain degree of viscosity. In addition, when the film is returned, the fibers constituting the cloth also intrude in a direction in which holes are perforated, which serves to suppress the leakage of the foam raw material. Therefore, it is not necessary to control the foaming pressure so strictly, and even if the foaming pressure becomes high, the leakage of the foam raw material in a problematic amount does not occur.
【００２２】[0022]
【実施例】以下、実施例により本発明を具体的に説明す
る。 実施例１ バッキング材としてアクリル酸ポリエステルが裏打ちし
てあるモケット、ウレタンスラブフォーム及び厚さ３０
μｍのポリウレタンフィルムからなる３層の表皮材を作
製し、その後、プレスの下型に装着されたトムソン型
（表面に直径０．８ｍｍの針が全面にほぼ均等に５本／
ｃｍ2 固定されており、この針の長さと同じの厚さのポ
リウレタンフォーム製の弾性パッドが針に差し込まれた
状態で装着されている。）を上記モケットの側に当てて
押圧することにより、所望形状の表皮材を打ち抜くとと
もに、上記フィルムに直径０．１ｍｍの貫通孔を５個／
ｃｍ2 開け、次いで、乗用車のヘッドレストの形状に縫
製し、この表皮カバーを発泡型中に収容し、フォーム原
料を注入して、発泡硬化後、成形品を脱型した。発泡圧
は１．５ｋｇ／ｃｍ2 であった。EXAMPLES The present invention will be specifically described below with reference to examples. Example 1 Moquette lined with polyester acrylate as backing material, urethane slab foam and thickness 30
A three-layer skin material made of a polyurethane film having a thickness of μm was prepared, and then a Thomson type (a needle having a diameter of 0.8 mm on the surface of the surface of the press is attached to the entire surface of the needle is approximately evenly 5 /
cm 2 is fixed, and an elastic pad made of polyurethane foam having the same thickness as the length of the needle is attached in a state of being inserted into the needle. ) Is pressed against the side of the moquette to punch the skin material having a desired shape, and the film is provided with 5 through holes each having a diameter of 0.1 mm.
cm 2 was opened and then sewn into the shape of a headrest of a passenger car, the skin cover was housed in a foam mold, the foam raw material was injected, and after foam hardening, the molded product was released from the mold. The foaming pressure was 1.5 kg / cm 2 .
【００２３】実施例２ ウレタンスラブフォーム層を有さない以外実施例１と同
様の構成の表皮材を使用し、表面に直径０．５ｍｍの針
が全面にほぼ均等に５本／ｃｍ2 固定されている他は実
施例１と同様のトムソン型によって、実施例１と同様に
して所望形状の表皮材を打ち抜くとともに、フィルムに
直径０．０５ｍｍの貫通孔を５個／ｃｍ2 開け、次い
で、発泡圧１．５ｋｇ／ｃｍ2 のフォーム原料を使用し
て、実施例１と同様にしてヘッドレストを得た。尚、フ
ォーム原料としては、ＴＤＩ／ＭＤＩ混合品と、平均分
子量５０００、水酸基価３０のポリエーテル、ポリマー
ポリオールブレンド品、アミン系／錫系触媒の他、低活
性シリコーン及び水からなるポリオール成分を使用し
た。Example 2 A skin material having the same structure as in Example 1 was used except that it did not have a urethane slab foam layer, and needles having a diameter of 0.5 mm were fixed to the entire surface at a uniform rate of 5 needles / cm 2. A skin material having a desired shape is punched out in the same manner as in Example 1 by using the same Thomson die as in Example 1 except that 5 holes / cm 2 having a diameter of 0.05 mm are opened in the film, and then foaming is performed. A headrest was obtained in the same manner as in Example 1 using a foam raw material having a pressure of 1.5 kg / cm 2 . As the foam raw material, a TDI / MDI mixture, a polyether having an average molecular weight of 5,000 and a hydroxyl value of 30, a polymer polyol blend, an amine-based / tin-based catalyst, and a polyol component composed of low-activity silicone and water are used. did.
【００２４】上記実施例１及び２いずれの場合も、発泡
硬化時、フォーム原料から発生するガスは、通気性のあ
る表皮材を透過して順次表皮材の外に抜け、且つ、ある
程度粘度の高いフォーム原料の漏出は全くなかった。ま
た、脱型して得られたヘッドレストには、気泡或いは欠
肉等はなく、ロールクラッシング、孔開けクラッシング
等の後処理をしなくても、その表層部は適度の通気性を
有するとともに柔軟であり、非常に感触のよいものであ
った。In each of Examples 1 and 2, the gas generated from the foam raw material during foaming and hardening permeates through the air-permeable skin material and sequentially escapes to the outside of the skin material, and has a high viscosity to some extent. There was no leakage of foam raw material. In addition, the headrest obtained by demolding has no air bubbles, lack of wall thickness, etc., and its surface layer portion has a proper air permeability even without post-treatment such as roll crushing and hole crushing. It was flexible and very pleasant to the touch.
【００２５】実施例３ 上記実施例１において、トムソン型をポリウレタン
フィルムの側に当てて押圧し、打ち抜き、孔開けを実施
した場合（実験例１）、フォーム原料の組成を変え、
発泡圧が２．５ｋｇ／ｃｍ2 となるようにし、その他は
実施例１と同様にして打ち抜き、孔開けを実施した場合
（実験例２）、実験例２において、実験例１同様ポリ
ウレタンフィルムの側から打ち抜き、孔開けを実施した
場合（実験例３）及び実験例２において、図２に示すよ
うな、打ち抜き刃の深さ及び針の長さと略同じ厚さを有
するポリウレタンフォーム製の弾性パッドが装着された
トムソン型を用いた以外は同様にして打ち抜き、孔開け
を実施した場合（実験例４）について、発泡硬化過程に
おけるフォーム原料の漏出の状況を検討し、第５発明の
効果を確認した。Example 3 In the above Example 1, when the Thomson mold was applied to the polyurethane film side and pressed, punched and punched (Experimental Example 1), the composition of the foam raw material was changed,
When the foaming pressure was set to 2.5 kg / cm 2 and punching and punching were performed in the same manner as in Example 1 except for the above (Experimental Example 2), in Experimental Example 2, the polyurethane film side was the same as in Experimental Example 1. In the case of punching and punching from (Experimental example 3) and Experimental example 2, an elastic pad made of polyurethane foam having a thickness substantially the same as the depth of the punching blade and the length of the needle as shown in FIG. When punching and punching were performed in the same manner except that the mounted Thomson mold was used (Experimental Example 4), the state of leakage of the foam raw material in the foam curing process was examined, and the effect of the fifth invention was confirmed. .
【００２６】上記の各実験例の結果によれば、実験例１
では、フィルム側から孔開けをしたが、発泡圧が１．５
ｋｇ／ｃｍ2 と好ましい範囲であるため、布（モケッ
ト）側から孔開けをした実施例１と同様にフォーム原料
の漏出は全くみられず、高品質のヘッドレストが得られ
た。また、実験例２では、孔開けは布側から実施してい
るが、発泡圧が２．５ｋｇ／ｃｍ2 と高いため、発泡硬
化過程において僅かな原料漏れが発生した。しかし、ヘ
ッドレスト成形後に漏れたフォームの除去を要するほど
ではなく、同様に優れた品質のヘッドレストが得られ
た。更に、実験例３では、フィルム側から孔開けをした
うえに、発泡圧も２．５ｋｇ／ｃｍ2 と高いため、実験
例２に比べフォーム原料の漏れが増加し、成形後に漏れ
たフォームを除去する必要があった。尚、この場合で
も、性能的には何ら問題のない製品が得られた。According to the results of the above experimental examples, Experimental example 1
Then, I made holes from the film side, but the foaming pressure was 1.5.
Since the preferred range was kg / cm 2 , as in Example 1 in which holes were punched from the cloth (moquette) side, no leakage of foam raw material was observed and a high quality headrest was obtained. Further, in Experimental Example 2, the punching was performed from the cloth side, but since the foaming pressure was as high as 2.5 kg / cm 2 , a slight leakage of the raw material occurred in the foam hardening process. However, a similarly good quality headrest was obtained, rather than requiring leakage foam removal after headrest molding. Further, in Experimental Example 3, since the film side was perforated and the foaming pressure was as high as 2.5 kg / cm 2 , the leakage of the foam raw material increased compared to Experimental Example 2, and the foam leaked after molding was removed. Had to do. Even in this case, a product having no problem in performance was obtained.
【００２７】また、実験例４は、トムソン型に弾性パッ
ドが装着されていること以外は実験例２と同様である
が、実験例２では僅かではあるがフォーム原料の漏れが
あったのに対し、実験例４では原料の漏れはまったくな
く、実施例１と同様の高品質のヘッドレストが得られ
た。この理由は、打ち抜き、孔開け終了後、弾性パッド
の作用により、表皮材が針から速やかに押し出され、貫
通孔の径及び形状が一定であり、且つフィルムの返りの
状態が揃った表皮材が得られたためであると考えられ
る。The experimental example 4 is the same as the experimental example 2 except that the elastic pad is attached to the Thomson type, but in the experimental example 2, there is a slight leakage of the foam raw material. In Experimental Example 4, there was no leakage of raw materials, and a high quality headrest similar to that in Example 1 was obtained. The reason for this is that after the punching and the opening of holes, the skin material is quickly pushed out of the needle by the action of the elastic pad, the diameter and shape of the through hole are constant, and the return material of the film is uniform. It is considered that this is because it was obtained.
【００２８】尚、本発明においては、前記具体的実施例
に示すものに限られず、目的、用途に応じて本発明の範
囲内で種々変更した実施例とすることができる。例え
ば、比較的シンプルな形状の事務用椅子或いはトラクタ
ー、バス用シート等とすることもでき、また、乗用車の
フロント及びリヤシート等の成形品とすることもでき
る。The present invention is not limited to the specific examples described above, and various modifications may be made within the scope of the present invention according to the purpose and application. For example, it may be a comparatively simple office chair, a tractor, a bus seat, or the like, or a molded product such as a front or rear seat of a passenger car.
【００２９】[0029]
【発明の効果】本第１及び第３発明のウレタン一体成形
品及びその製造方法では、表皮材が通気性に優れるた
め、フォーム原料の発泡硬化時に発生するガスが、表皮
材とフォームとの間に滞留することがなく、従って、成
形品に気泡を生ずることがない。また、表皮材を成形品
形状に縫製する場合、フィルムに開けられた多数の貫通
孔のためミシンの滑りがよく、安定した縫製が可能にな
るとともに縫製のスピードが上げられるため生産性が向
上する。更に、表皮材裏面のバッキング材とフォームと
の接着性も良好であり、従来技術のようにフィルム表面
に塗布されたシリコーンオイルのために、表皮層がフォ
ームから剥離してしまうというようなこともない。EFFECTS OF THE INVENTION In the urethane integrally molded product and the method for producing the same according to the first and third aspects of the present invention, since the skin material is excellent in air permeability, the gas generated during foaming and hardening of the foam raw material is generated between the skin material and the foam. Therefore, no air bubbles are generated in the molded product. Also, when sewing the skin material into a molded product shape, the sewing machine slides well due to the large number of through holes formed in the film, which enables stable sewing and improves the productivity because the sewing speed is increased. . Furthermore, the adhesiveness between the backing material on the back surface of the skin material and the foam is also good, and the silicone oil applied to the film surface as in the prior art may cause the skin layer to peel off from the foam. Absent.
【００３０】また、第２発明では、特定の合成樹脂から
なる特定厚さのフィルムに、より好ましい直径及び個数
の貫通孔を設けることにより、第１発明の効果が更に優
れたものとなり、更に、第４発明は第３発明において、
合成樹脂の種類、フィルムの厚さ等を特定し、且つ発泡
圧を好ましい範囲に限定したものであり、より優れた形
状、性能の製品が得られる。更に、本発明のウレタン一
体成形品は、初期硬度が小さく、ソフトな感触で、人が
頭部或いは腕等を接触させた時の肌触りがよい。また、
ロールクラッシング、穴開けクラッシング等の後処理が
不要であり、また、表皮材を所要形状に打ち抜くと同時
にフィルムに貫通孔が設けられるため、工程の面からみ
て経済的にも好ましいものである。Further, in the second invention, the effect of the first invention is further enhanced by providing through holes having a more preferable diameter and number in a film having a specific thickness made of a specific synthetic resin. The fourth invention is the same as the third invention,
The type of synthetic resin, the thickness of the film, and the like are specified, and the foaming pressure is limited to a preferable range, so that a product with more excellent shape and performance can be obtained. Further, the urethane integrally molded product of the present invention has a small initial hardness, has a soft touch, and has a good feel to the touch when a person makes contact with the head or arm. Also,
Post-treatment such as roll crushing and hole crushing is unnecessary, and since the through-hole is formed in the film at the same time when the skin material is punched into a required shape, it is economically preferable from the viewpoint of the process. .
【００３１】また、第５発明のように、打ち抜き、孔開
けを布面側から実施することにより、たとえ発泡圧が少
々高くなっても、フォーム原料の漏出をより効果的に防
止することができる。更に、第７発明に特定された抜き
型を使用すれば、打ち抜き、孔開け後、表皮材を針から
速やかに且つ確実に押し出すことができ、孔径及び形状
が揃った貫通孔を設けることができ、特に第８発明のよ
うな特定の硬さを有するポリウレタンフォームからなる
弾性パッドを使用すれば、第７発明の効果がより確実に
奏せられる。尚、この抜き型において、第９発明のよう
に、打ち抜き刃及び針の寸法をパッドの表面と同一面に
達する程度のものとすれば、より使用し易いものとする
ことができる。Further, as in the fifth aspect of the invention, by punching and punching from the cloth surface side, it is possible to more effectively prevent leakage of the foam raw material even if the foaming pressure is slightly increased. . Furthermore, by using the punching die specified in the seventh aspect of the present invention, after punching and punching, the skin material can be quickly and surely pushed out from the needle, and a through hole having a uniform hole diameter and shape can be provided. Especially, when the elastic pad made of polyurethane foam having a specific hardness as in the eighth invention is used, the effect of the seventh invention can be more reliably exhibited. Incidentally, in this punching die, if the dimensions of the punching blade and the needle reach the same surface as the surface of the pad, as in the ninth invention, it can be more easily used.
【図１】第５発明の方法によって表皮材に孔を開けた場
合の、フィルムの返りの様子等を、１箇所の孔を拡大し
て分かり易く示した断面図である。FIG. 1 is a cross-sectional view showing the state of return of a film and the like in the case where a hole is made in a skin material by the method of the fifth invention, with one hole being enlarged for easy understanding.
【図２】（ａ）は第６発明の抜き型の一部断面図、
（ｂ）はこの抜き型を用いて表皮材を打ち抜くと同時に
孔を開けている様子を模式的に示す一部断面図である。FIG. 2 (a) is a partial cross-sectional view of a cutting die of the sixth invention,
(B) is a partial cross-sectional view schematically showing a state in which a hole is opened at the same time when the skin material is punched out using this punching die.
１；表皮材、１１；布、１１１；布を構成する繊維、１
２；合成樹脂フィルム、１２１；合成樹脂フィルムの返
り、１３；貫通孔、２；抜き型、２１；基板、２２；打
ち抜き刃、２３；針、２４；弾性パッド。1; skin material, 11; cloth, 111; fibers constituting the cloth, 1
2; synthetic resin film, 121; return of synthetic resin film, 13; through hole, 2; punching die, 21; substrate, 22; punching blade, 23; needle, 24; elastic pad.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｋ 105:04 Ｂ２９Ｌ 31:58 (72)発明者 山口 智也 愛知県安城市今池町３丁目１番36号 株式 会社イノアックコーポレーション安城事業 所内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Reference number within the agency FI Technical display location B29K 105: 04 B29L 31:58 (72) Inventor Tomoya Yamaguchi 3-1-1 Imaikecho, Anjo City, Aichi Prefecture No. 36 Inoac Corporation Anjo Works
Claims (10)
ポリウレタンフォーム一体成形品であって、 上記表皮材は、少なくとも布と合成樹脂フィルムが積層
されたものであり、その所要箇所に、直径０．０１〜
０．３ｍｍの貫通孔が１〜１００個／ｃｍ2 開けられて
いることを特徴とするポリウレタンフォーム一体成形
品。1. A polyurethane foam integrally-molded product comprising a skin material and a polyurethane foam, wherein the skin material is at least a cloth and a synthetic resin film laminated, and a diameter of 0.01 to
A polyurethane foam integrally molded product having 1 to 100 holes / cm 2 of 0.3 mm through holes.
化ビニルであり、上記フィルムの厚さが３０〜１００μ
ｍであって、上記貫通孔の直径が０．０５〜０．２ｍ
ｍ、その個数が１〜１０個／ｃｍ2 である請求項１記載
のポリウレタンフォーム一体成形品。2. The synthetic resin is polyurethane or polyvinyl chloride, and the thickness of the film is 30 to 100 μm.
m, and the diameter of the through hole is 0.05 to 0.2 m
The polyurethane foam integrally molded product according to claim 1, wherein m is the number of 1 to 10 / cm 2 .
〜１００本／ｃｍ2固定された抜き型によって、少なく
とも布と合成樹脂フィルムが積層されてなる表皮材から
所望形状の表皮材を打ち抜くと同時に、該所望形状の表
皮材の所要箇所に、直径０．０１〜０．３ｍｍの貫通孔
を１ｃｍ2 当たり１〜１００個開け、その後、上記所望
形状の表皮材を所定形状に縫製して、上記布を外面とし
た表皮カバーを形成し、次いで、上記表皮カバーを成形
型内に収容し、その後、上記表皮カバー内にポリウレタ
ンフォーム原料を注入し、発泡硬化後、脱型することを
特徴とするポリウレタンフォーム一体成形品の製造方
法。3. One needle having a diameter of 0.1 to 1.0 mm is provided on the surface.
-100 pieces / cm 2 A punch having a fixed shape is used to punch a skin material having a desired shape from at least a skin material formed by laminating a cloth and a synthetic resin film, and at the same time, a diameter 0 1 to 100 through holes of 0.01 to 0.3 mm are opened per 1 cm 2 , and then the skin material having the desired shape is sewn into a predetermined shape to form a skin cover having the cloth as an outer surface, and then A method for producing a polyurethane foam-integrated molded article, characterized in that a skin cover is housed in a molding die, and then a polyurethane foam raw material is injected into the skin cover, followed by foaming and curing, and then demolding.
化ビニルであり、上記フィルムの厚さが３０〜１００μ
ｍであって、上記貫通孔の直径が０．０５〜０．２ｍ
ｍ、その個数が１〜１０個／ｃｍ2 であり、且つ上記ポ
リウレタンフォーム原料の発泡圧が、０．５〜２．０ｋ
ｇ／ｃｍ2 である請求項３記載のポリウレタンフォーム
一体成形品の製造方法。4. The synthetic resin is polyurethane or polyvinyl chloride, and the film has a thickness of 30 to 100 μm.
m, and the diameter of the through hole is 0.05 to 0.2 m
m, the number thereof is 1 to 10 / cm 2 , and the foaming pressure of the polyurethane foam raw material is 0.5 to 2.0 k.
The method for producing a polyurethane foam integrally molded article according to claim 3, wherein the method is g / cm 2 .
されてなる表皮材に貫通孔を設ける方法において、 表面に複数本の針が固定された抜き型を上記布の側から
押し当て、所望形状の上記表皮材を打ち抜くと同時に、
上記針を所望形状の上記表皮材に貫通させ、その後、上
記針を引き抜くことにより、上記所望形状の表皮材に複
数の貫通孔を設けることを特徴とする表皮材の孔開け方
法。5. A method of forming a through hole in a skin material, which is formed by laminating at least a cloth and a synthetic resin film, wherein a die having a plurality of needles fixed to the surface is pressed from the cloth side to obtain a desired shape. At the same time as punching out the above skin material,
A method for making a hole in a skin material, wherein a plurality of through holes are provided in the skin material having the desired shape by penetrating the skin material having the desired shape and then withdrawing the needle.
数が１〜１００本／ｃｍ2 であり、上記貫通孔の直径が
０．０１〜０．３ｍｍ、個数が１〜１００個／ｃｍ2 で
ある請求項５記載の表皮材の孔開け方法。6. The diameter of the needle is 0.1 to 1.0 mm, the number is 1 to 100 / cm 2 , and the diameter of the through hole is 0.01 to 0.3 mm, and the number is 1 to 100. The method for perforating a skin material according to claim 5, wherein the method is per cm 2 .
されてなる表皮材に貫通孔を設けるために使用される抜
き型であって、 基部、該基部の一面に立設された打ち抜き刃及び複数の
針、並びに上記複数の針に差し込まれ、且つその一面が
上記基部の上記一面に接した状態で装着されている弾性
パッドからなることを特徴とする抜き型。7. A punching die used for forming a through hole in a skin material having at least a cloth and a synthetic resin film laminated, comprising: a base, a punching blade erected on one surface of the base, and a plurality of punching blades. A die, which comprises a needle and an elastic pad inserted into the plurality of needles and having one surface thereof in contact with the one surface of the base portion.
１によって測定した硬さが１０〜２０ｋｇｆのポリウレ
タンフォームからなるものである請求項７記載の抜き
型。8. The elastic pad is JIS K 640.
The die according to claim 7, which is made of a polyurethane foam having a hardness of 10 to 20 kgf measured by 1.
び上記弾性パッドの厚さが略同じである請求項７又は８
記載の抜き型。9. The depth of the punching blade, the length of the needle, and the thickness of the elastic pad are substantially the same.
The cutting die described.
数が１〜１００本／ｃｍ2 である請求項７乃至９のいず
れか１項に記載の抜き型。10. The punching die according to claim 7, wherein the needle has a diameter of 0.1 to 1.0 mm and a number of 1 to 100 needles / cm 2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7087398A JP2906363B2 (en) | 1994-06-08 | 1995-03-20 | Method for producing polyurethane foam integrally molded article and punching die used therefor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6-151513 | 1994-06-08 | ||
| JP15151394 | 1994-06-08 | ||
| JP7087398A JP2906363B2 (en) | 1994-06-08 | 1995-03-20 | Method for producing polyurethane foam integrally molded article and punching die used therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0852747A true JPH0852747A (en) | 1996-02-27 |
| JP2906363B2 JP2906363B2 (en) | 1999-06-21 |
Family
ID=26428684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7087398A Expired - Fee Related JP2906363B2 (en) | 1994-06-08 | 1995-03-20 | Method for producing polyurethane foam integrally molded article and punching die used therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2906363B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006327145A (en) * | 2005-05-30 | 2006-12-07 | Toyota Boshoku Corp | Sheet pad with skin, manufacturing method of sheet pad with skin and form block for pad |
| JP2007054466A (en) * | 2005-08-26 | 2007-03-08 | Inoac Corp | Method for manufacturing pored pillow |
-
1995
- 1995-03-20 JP JP7087398A patent/JP2906363B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006327145A (en) * | 2005-05-30 | 2006-12-07 | Toyota Boshoku Corp | Sheet pad with skin, manufacturing method of sheet pad with skin and form block for pad |
| JP4591210B2 (en) * | 2005-05-30 | 2010-12-01 | トヨタ紡織株式会社 | Seat pad with skin, method of manufacturing seat pad with skin, and pad mold |
| JP2007054466A (en) * | 2005-08-26 | 2007-03-08 | Inoac Corp | Method for manufacturing pored pillow |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2906363B2 (en) | 1999-06-21 |
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